California's Salton Sea lake sits above superhot temperatures that could be used to generate electricity, which a local utility hopes to do.

Salton Sea, a lake formed in 1905 by a flooding Colorado River, may be the launch site for geothermal energy in the U.S. The shallow, salty lake sits atop the San Andreas fault, 226 feet below sea level. About a mile beneath Salton's southern tip, the earth burns at 680 degrees Fahrenheit, a perfect place...